<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div id="container">
      <canvas id="canvas"></canvas>
      <div id="information">
          <form>
              <input id="btn_save" type="button" value="保存当前帧">
              <input id="btn_prev" type="button" value="上一帧">
              <span id="current_frame"></span>
              <input id="btn_next" type="button" value="下一帧">
          </form>
      </div>
  </div>
<script src="script.js"></script>
</body>
</html>